11253540551 has 16 divisors (see below), whose sum is σ = 12560624640. Its totient is φ = 9994589280.

The previous prime is 11253540539. The next prime is 11253540577. The reversal of 11253540551 is 15504535211.

It is a cyclic number.

It is not a de Polignac number, because 11253540551 - 2¹⁰ = 11253539527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11253540511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268430 + ... + 307508.

It is an arithmetic number, because the mean of its divisors is an integer number (785039040).

Almost surely, 2^11253540551 is an apocalyptic number.

11253540551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11253540551 is a deficient number, since it is larger than the sum of its proper divisors (1307084089).

11253540551 is a wasteful number, since it uses less digits than its factorization.

11253540551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39694.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 11253540551 in words is "eleven billion, two hundred fifty-three million, five hundred forty thousand, five hundred fifty-one".